Four police officers were wounded and one was killed during a drug investigation in Greenland, N.H. NBC's Michelle Franzen reports.

By The Associated Press and NBC News

Updated at 5:41 a.m. ET: GREENLAND, N.H. -- The body of a man suspected of killing a New Hampshire police chief and wounding four other officers during a drug raid has been found in a house along with that of an unidentified woman, an official said Friday.

Attorney General Michael Delaney told reporters a police robot was sent inside the house at around 2 a.m. Friday following a standoff. It detected the bodies of suspect Cullen Mutrie and the woman, said by NBC News sources to be Mutrie's girlfriend. Delaney said both died of gunshot wounds.

Greenland Police Chief Michael Maloney, who was due to retire in less than two weeks, was killed Thursday evening when he and other officers entered the house during a drug raid.

Two officers from other communities were shot in the chest and were in intensive care early Friday. Two others were treated and released.

'Sacrificed his life'The shooting has devastated the town of 3,500 near the seacoast that had just seven police officers, including Maloney, 48.

"In those final days, he sacrificed his life in public service as a law enforcement officer in New Hampshire," Delaney said early Friday.

Maloney had 26 years of experience in law enforcement, the last 12 as chief of the Greenland department.

During the standoff, officials brought in an armored car "like a tank" with a battering ram, according to an NBC News correspondent at the location.

Police patrolled the area armed with machine guns. Air space was shut down and homes in the area were evacuated. Before the end of the standoff, it was said that the town's schools would be closed Friday, because law enforcement officers were using the elementary school as a staging area.

Delaney earlier told a news conference that "law enforcement officers responded to 517 Post Road and ... were conducting a drug investigation. They entered the home at that time and they encountered an armed subject."

"The armed subject shot rounds at the officers...," he continued. "The officers that were wounded are receiving treatment for their gunshot wounds at a local hospital."

Detective Scott Kukesh, 33, a 10-year veteran of the Newmarket police department, was in intensive care awaiting surgery for a gunshot wound to the chest; and Detective Jeremiah Murphy, 34, a seven-year veteran of the Rochester police department, was in intensive care after surgery for a gunshot wound to the chest.

Detective Gregory Turner, 32, a six-year veteran of the Dover police department, was treated for a gunshot wound to the shoulder and released; Detective Eric Kulberg, 31, a seven-year veteran of the University of New Hampshire police department, was treated for a gunshot wound to the arm and released.

Neighbors told the station that police had been called to the house before.

"It's been known for sometime that something's been going on at that house. It's just a matter of time. When you see lights on at 4 o'clock in the morning and you see vehicles coming in and out and you have cameras mounted on their porch looking out to see people coming in...," one neighbor told NBC Boston.

Law enforcement agencies from surrounding towns such as Rye, Portsmouth, and Exeter, New Hampshire, went to Greenland to help during the standoff.

"We're in crisis mode," said Karen Anderson, town administer, as the siege continued.

Surprise party for chief's retirementJohn Penacho, chairman of the town's Board of Selectman, said Maloney was married with children.

"It's a blow to all of us. You're stunned. It's New Hampshire, it's a small town," he said. "We're stunned. I mean all of us. It's an unbelievable situation."

Jacqueline DeFreze, who lives a half-mile down the road from the house where the shooting happened, said she was devastated by reports that the chief had been shot.

She had planned to attend a surprise party for his retirement.

"I'm a wreck. He was just the greatest guy," said DeFreze, a fourth-grade teacher in nearby Rye. "He's kind-hearted, always visible in the community."

Gov. John Lynch was at Portsmouth Regional Hospital, where the officers were taken. He asked residents to pray for the injured officers and Maloney's family.

"My thoughts and prayers and those of my wife, Susan, are with the family of Chief Michael Maloney. Chief Maloney's unwavering courage and commitment to protecting others serves as an example to us all," he said.